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Keisam Robin

Oct 11, 2013

# Find the length of the longest rod that can be placed in a room

Find the length of the longest rod that can be placed in a room 12 m long, 9 m broad and 8 m high.

Syeda

Answer.     Given length l = 12 m breadth b = 9 m and height h = 8 m Longest rod that can be placed in a room is nothing but its diagonal. Length of diagonal of a cuboid = √(l2 + b2 + h2) Length of longest rod = √(122 + 92 + 82) m = √(144 + 81 + 64) m = √289 m = 17 m Thus the length of the longest rod is 17 m

Member since Apr 1, 2017



Mridu

Longest chord -- square root of length X length plus breadth X breadth plus height X height (write in mathematical form) is equal to 289

Kishore Kumar

Given length l = 12 m breadth b = 9 m and height h = 8 m Longest rod that can be placed in a room is nothing but its diagonal. Length of diagonal of a cuboid = √(l2 + b2 + h2) Length of longest rod = √(122 + 92 + 82) m = √(144 + 81 + 64) m = √289 m = 17 m Thus the length of the longest rod is 17 m.
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